Patents by Inventor Amir I. Zaghloul
Amir I. Zaghloul has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Patent number: 11456534Abstract: A multi-band antenna includes an S-band substrate; an S-band annular ring on the S-band substrate; an X-band substrate in the S-band substrate; and an X-band patch located in a center of the S-band annular ring and on the X-band substrate. The S-band annular ring includes a first upper surface, the X-band patch includes a second upper surface, and the first upper surface is planar with the second upper surface. The multi-band antenna includes a second pair of concentric patch antennas arranged in an annular configuration and stacked on the first pair of antennas. The second pair of antennas are placed on the same substrate and are electromagnetically coupled to the first pair of antennas to provide an extended bandwidth capability.Type: GrantFiled: June 13, 2019Date of Patent: September 27, 2022Assignee: The United States of America as represented by the Secretary of the ArmyInventors: Gregory A. Mitchell, Amir I. Zaghloul
-
Publication number: 20220192066Abstract: A highly-conformal, pliable thin electromagnetic (EM) skin for altering at least one electromagnetic property of a surface includes a pliable thin film, and sub-wavelength elements incorporated into and/or on the pliable thin film which are smaller in scale than the wavelengths of electromagnetic radiation they are intended to influence. The electromagnetic skin readily conforms to contours of a surface to which it attaches or otherwise adheres to. Such electromagnetic skin can be used to cover various surface and platforms on equipment, walls, vehicles, and aircraft to change the electromagnetic properties of such surfaces to achieve certain functions that are not achievable with simple ground plane surfaces. The EM skin may be judiciously configured to alter at least one electromagnetic property of the surface by blocking, absorbing, enhancing, and/or bending waves of electromagnetic radiation.Type: ApplicationFiled: December 16, 2020Publication date: June 16, 2022Inventors: Amir I. Zaghloul, Quang Minh Nguyen, Eric D. Adler
-
Patent number: 10811772Abstract: An antenna array comprising a plurality of concentric low frequency elements, where each low frequency element circumscribes a first high frequency element; and a plurality of second high frequency elements interleaved with the plurality of concentric low frequency elements to maintain optimal electrical spacing between both the low frequency elements and the high frequency elements at two disparate frequencies.Type: GrantFiled: September 17, 2018Date of Patent: October 20, 2020Assignee: The United States of America as represented by the Secretary of the ArmyInventors: Gregory A. Mitchell, Amir I. Zaghloul
-
Publication number: 20200021026Abstract: A multi-band antenna includes an S-band substrate; an S-band annular ring on the S-band substrate; an X-band substrate in the S-band substrate; and an X-band patch located in a center of the S-band annular ring and on the X-band substrate. The S-band annular ring includes a first upper surface, the X-band patch includes a second upper surface, and the first upper surface is planar with the second upper surface. The multi-band antenna includes a second pair of concentric patch antennas arranged in an annular configuration and stacked on the first pair of antennas. The second pair of antennas are placed on the same substrate and are electromagnetically coupled to the first pair of antennas to provide an extended bandwidth capability.Type: ApplicationFiled: June 13, 2019Publication date: January 16, 2020Inventors: Gregory A. Mitchell, Amir I. Zaghloul
-
Publication number: 20190089057Abstract: An antenna array comprising a plurality of concentric low frequency elements, where each low frequency element circumscribes a first high frequency element; and a plurality of second high frequency elements interleaved with the plurality of concentric low frequency elements to maintain optimal electrical spacing between both the low frequency elements and the high frequency elements at two disparate frequencies.Type: ApplicationFiled: September 17, 2018Publication date: March 21, 2019Inventors: Gregory A. Mitchell, Amir I. Zaghloul
-
Patent number: 10122072Abstract: A nanofabric antenna is provided. The nanofabric antenna can include a fabric and a plurality of conductive nanowires extending outwardly from the fabric with the conductive nanowires forming a random array of monopoles. In this manner, an antenna can be included as part of a piece of clothing and/or a piece of fabric used or worn by an individual.Type: GrantFiled: February 9, 2012Date of Patent: November 6, 2018Assignee: The United States of America as represented by the Secretary of the ArmyInventors: Amir I. Zaghloul, Steven D. Keller
-
Patent number: 10014581Abstract: A radio frequency patch antenna having a radiator patch constructed of an anisotropic material, such as carbon nanotube sheet material. Such material is flexible so that the antenna may be wearable and/or integrated into a textile substrate. A feed line couples the radio signal to the patch. Furthermore, the efficiency of radiation from the patch is directly related to the orientation of the fibers or carbon nanotubes in the anisotropic material relative to the orientation of the feed line. Dual polarized radiators can be constructed from two orthogonal layers of CNT patches fed with correspondingly orthogonal feed lines.Type: GrantFiled: October 22, 2015Date of Patent: July 3, 2018Assignee: The United States of America as represented by the Secretary of the ArmyInventors: Steven D. Keller, Amir I. Zaghloul
-
Patent number: 9929461Abstract: An antenna having an elongated housing open at one end and defining an interior chamber. A telescoping mast has a carrier attached at a first end and a flexible antenna attached at its other end. The carrier with the attached mast and antenna is movable between a storage position in which the carrier, mast, and antenna are contained within the interior chamber of the housing, and a deployed position in which the mast and attached antenna protrude outwardly from the housing. A spring is positioned between the carrier and the housing which urges the carrier towards its deployed position. A catch mechanism selectively holds the carrier in its stored position and, when released, releases the spring to move the antenna to its deployed position.Type: GrantFiled: September 21, 2017Date of Patent: March 27, 2018Assignee: The United States of America as represented by the Secretary of the ArmyInventors: Amir I. Zaghloul, William T. Fraser, Theodore K. Anthony, Andrew J. Bayba
-
Publication number: 20180026357Abstract: An antenna having an elongated housing open at one end and defining an interior chamber. A telescoping mast has a carrier attached at a first end and a flexible antenna attached at its other end. The carrier with the attached mast and antenna is movable between a storage position in which the carrier, mast, and antenna are contained within the interior chamber of the housing, and a deployed position in which the mast and attached antenna protrude outwardly from the housing. A spring is positioned between the carrier and the housing which urges the carrier towards its deployed position. A catch mechanism selectively holds the carrier in its stored position and, when released, releases the spring to move the antenna to its deployed position.Type: ApplicationFiled: September 21, 2017Publication date: January 25, 2018Inventors: Amir I. Zaghloul, William T. Fraser, JR., Theodore K. Anthony, Andrew J. Bayba
-
Patent number: 9786984Abstract: An antenna having an elongated housing open at one end and defining an interior chamber. A telescoping mast has a carrier attached at a first end and a flexible antenna attached at its other end. The carrier with the attached mast and antenna is movable between a storage position in which the carrier, mast, and antenna are contained within the interior chamber of the housing, and a deployed position in which the mast and attached antenna protrude outwardly from the housing. A spring is positioned between the carrier and the housing which urges the carrier towards its deployed position. A catch mechanism selectively holds the carrier in its stored position and, when released, releases the spring to move the antenna to its deployed position.Type: GrantFiled: June 19, 2014Date of Patent: October 10, 2017Assignee: The United States of America as represented by the Secretary of the ArmyInventors: Amir I. Zaghloul, William T. Fraser, Jr., Theodore K. Anthony, Andrew J. Bayba
-
Publication number: 20160315372Abstract: An antenna having an elongated housing open at one end and defining an interior chamber. A telescoping mast has a carrier attached at a first end and a flexible antenna attached at its other end. The carrier with the attached mast and antenna is movable between a storage position in which the carrier, mast, and antenna are contained within the interior chamber of the housing, and a deployed position in which the mast and attached antenna protrude outwardly from the housing. A spring is positioned between the carrier and the housing which urges the carrier towards its deployed position. A catch mechanism selectively holds the carrier in its stored position and, when released, releases the spring to move the antenna to its deployed position.Type: ApplicationFiled: June 19, 2014Publication date: October 27, 2016Inventors: Amir I. Zaghloul, William T. Fraser, JR., Theodore K. Anthony, Andrew J. Bayba
-
Patent number: 9407011Abstract: An electromagnetic bandgap structure comprising a progressive cascade of a plurality of patterns of cells. The cells of each pattern are dimensioned so that each pattern has a reflection phase response centered at a different, but closely-spaced, frequency compared with the reflection phase response of an adjacently positioned pattern, so that the combined reflection phase response of the plurality of patterns provides a continuous wideband operational range.Type: GrantFiled: December 13, 2012Date of Patent: August 2, 2016Assignee: The United States of America as represented by the Secretary of the ArmyInventors: Amir I. Zaghloul, Steven J. Weiss
-
Patent number: 9337542Abstract: A planar antenna comprising: a substrate, a resonant element generating an electromagnetic wave, a plurality of parallel, spaced apart conductive strips on the substrate, wherein conductive strips form collinear rows of at least two strips that are physically separated by a slot to guide the electromagnetic wave in a specific direction.Type: GrantFiled: November 28, 2012Date of Patent: May 10, 2016Assignee: The United States of America as represented by the Secretary of the ArmyInventors: William O. Coburn, Amir I. Zaghloul
-
Publication number: 20160126633Abstract: A radio frequency patch antenna having a radiator patch constructed of an anisotropic material, such as carbon nanotube sheet material. Such material is flexible so that the antenna may be wearable and/or integrated into a textile substrate. A feed line couples the radio signal to the patch. Furthermore, the efficiency of radiation from the patch is directly related to the orientation of the fibers or carbon nanotubes in the anisotropic material relative to the orientation of the feed line. Dual polarized radiators can be constructed from two orthogonal layers of CNT patches fed with correspondingly orthogonal feed lines.Type: ApplicationFiled: October 22, 2015Publication date: May 5, 2016Inventors: Steven D. Keller, Amir I. Zaghloul
-
Patent number: 9276305Abstract: A method and apparatus for providing multiple functions using nanotube threads comprising: a first nanotube thread and a second nanotube thread, the first nanotube thread and the second nanotube thread arranged to form a mesh, wherein the first nanotube thread further comprises a measurable invariant property and the second nanotube thread comprises a measurable variant property.Type: GrantFiled: November 28, 2012Date of Patent: March 1, 2016Assignee: The United States of America as represented by the Secretary of the ArmyInventors: Steven D. Keller, Amir I. Zaghloul
-
Patent number: 9147924Abstract: Certain embodiments relate to a waveguide/coplanar waveguide (CPW) transition assembly adapted to transition RF signals from a waveguide to a coplanar waveguide (CPW), the waveguide/CPW transition assembly having at least some peripheral walls and including a central waveguide transition septum having the CPW disposed therein. The waveguide/coplanar waveguide (CPW) transition assembly includes an electronic component coupled to the CPW, and control circuitry operationally coupled with the electronic component. Portions of the control circuitry at least partially extend from outside of the at least some peripheral walls to within the at least some peripheral walls.Type: GrantFiled: September 2, 2011Date of Patent: September 29, 2015Assignee: The United States of America as represented by the Secretary of the ArmyInventors: Theodore K. Anthony, Amir I. Zaghloul
-
Patent number: 8736503Abstract: Apparatus for receiving and transmitting electromagnetic signals are disclosed herein. In some embodiments, an apparatus includes a positive refractive index (PRI) medium; a negative refractive index (NRI) medium having a first side and a second side disposed in the PRI medium; a plurality of first transmission lines, each first transmission line having a first end extending toward the first side of the NRI medium; and a plurality of second transmission lines, each second transmission line having a second end extending toward the second side of the NRI medium, wherein a plurality of electromagnetic signals travelling in a first direction, enters the PRI medium and travels along the plurality of first transmissions lines and exits into first side of the NRI medium, passes through the NRI medium and exits through the second side of the NRI medium into the PRI medium along a first one of the second transmission lines.Type: GrantFiled: January 30, 2012Date of Patent: May 27, 2014Assignee: The United States of America as represented by the Secretary of the ArmyInventors: Amir I. Zaghloul, Eric D. Adler
-
Publication number: 20130293429Abstract: A method and apparatus for providing multiple functions using nanotube threads comprising: a first nanotube thread and a second nanotube thread, the first nanotube thread and the second nanotube thread arranged to form a mesh, wherein the first nanotube thread further comprises a measurable invariant property and the second nanotube thread comprises a measurable variant property.Type: ApplicationFiled: November 28, 2012Publication date: November 7, 2013Applicant: U.S. Army Research Laboratory ATTN: RDRL-LOC-IInventors: Steven D. Keller, Amir I. Zaghloul
-
Publication number: 20130241787Abstract: A planar antenna comprising: a substrate, a resonant element generating an electromagnetic wave, a plurality of parallel, spaced apart conductive strips on the substrate, wherein conductive strips form collinear rows of at least two strips that are physically separated by a slot to guide the electromagnetic wave in a specific direction.Type: ApplicationFiled: November 28, 2012Publication date: September 19, 2013Applicant: U.S. Army Research Laboratory ATTN: RDRL-LOC-IInventors: William O. Coburn, Amir I. Zaghloul
-
Publication number: 20130207850Abstract: A nanofabric antenna is provided. The nanofabric antenna can include a fabric and a plurality of conductive nanowires extending outwardly from the fabric with the conductive nanowires forming a random array of monopoles. In this manner, an antenna can he included as part of a piece of clothing and/or a piece of fabric used or worn by an individual.Type: ApplicationFiled: February 9, 2012Publication date: August 15, 2013Inventors: Amir I. Zaghloul, Steven D. Keller